P016B: Mixture control has reached its limit and the mixture is still too rich
Mixture control has reached its limit and the mixture is still too rich.
| Code | P016B |
|---|---|
| System | Engine and transmission |
| Group | P01xx, Air and fuel metering |
| Type | Generic: it means the same on every make |
How to read and clear P016B with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P016B with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- P0167 The lambda sensor heater (bank 2, sensor 3) has an electrical fault
- P0168 The engine fuel temperature is above normal
- P0169 The fuel composition is incorrect
- P016A The mixture control takes too long to enter closed loop operation
- P016C Mixture control has reached its limit and the mixture is still too lean
- P016D Fuel pressure control takes too long to enter closed loop operation
- P016E The closed loop fuel pressure control in the limit pressure gives a higher
- P016F The closed loop fuel pressure control in the limit pressure gives a lower
- P0100 Mass or volume air flow sensor circuit fault
- P0101 Air flow sensor range or performance problem
- P0102 Air flow sensor circuit low input
- P0103 Air flow sensor circuit high input
What does code P016B mean?
Mixture control has reached its limit and the mixture is still too rich.
How do you clear P016B?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P016B comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
